1. Have 3.5 inch LCD screen, can easily and clearly to see vocal cords and cavum laryngis.
2. All Metal meterial.
3. It can be Single Use or Reusable.
4. The Screen and Handel can be depart separately.
5. It can continues using for over 2 hours.
6. It can standy by over 300 minutes.
7. It can use rechargeable battery or normal NO.7 battery.
8. It is easy to take a photo or video record.